NetBox write-path residue routed to docs/netbox-write-path-findings.md ...

Open items only (#4/#5 unfixed, fidelity re-run + fix re-verify owed), gated
on the next NetBox write campaign; ledger retained block repointed.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01VUjEb7onHpdqFHUnio6iVw